James i



I. M. TRIER. CLEANER FOR OFFSET wxN'DlNG DRUMS of PRINTING PRESSES.

APPLICATION FILED SEPT. l4. l9l.

mr mums persas c.: ,Puma-Um JAMES M. TRIER, OF NEW YORK, N. Y.

CLEANER FOR OFFSET-WINDING DRUMS OF PRINTING-PRESSES.

Specication of Letters Patent.

Patented Julie 10, 1919.

Application filed September 14, 1918. Serial No. 254,090.

To all 102mm t may concern Be it known that I, JAMES M. TRIER, a

' citizen of the United States, and a resident of the city of New York, borough of the Bronx, in the county of Bronx and State of New York, have invented a new and Improved Cleaner for Ofset-lVinding Drums of Printing-Presses, of which the 'following is a full, clear, and exact description.

Among the principal objects which the present invention has in view are: to remove from the rollers supporting and driving the oset drum, deposits of ink transferred thereto from the offset web; to avoid transferring to the oset web deposits of ink or other materials; and to provide an apparatus for effecting the above stated objects, the construction and arrangement of which apparatus is simplified.

Dra/wings.

Figure 1 is a top plan view of the supporting rollers for an offset web winding drum, the rollers being severed and contracted;

Fig. 2 is a vertical section of a fragment of the offset drum and of the lubricatino pan for supplying the cleaner, the latter eing shown in side elevation;

Fig. 3 is a cross section, the section being taken as on the line 3 3 in Fig. 1;

Fig. 4 is a detail view on an enlarged scale, showing the cleaner in side elevation;-

Fig. 5 is a cross section of the same, the section being taken as on the line 5-5 in Fig. 4;

Fig. 6 is a bottom plan view of the apparatus. Y

Description.

Printing presses of the cylinder type which employ an offset web 11 to cover the fresh but previously printed 4surface of the paper being imprinted, have been subject to an objection in that the rollers 12 for supporting the web and winding drum 13 ferred to is one of gradual deposit, said accumulation being easily avoided if precaution is taken.in the early stages of the deposit.

In the present invention, the rollers are .kept lubricated by the wipers 14. The wip- .ers 14, as best seen in Fig. 5 of the drawings, are constructed of fibrous material to convey lubricant by capillary action from the wick ends 15 thereof to the folded upper section, which is supported by the wire loops 16. As seen best in Figs. 2 and 3, the wick ends 15 are normally disposed in an elongated trough 17, which bridges the space between` the sides 18 of the frame of a printing press. The trough 17 is supported by a drip pan 19, arranged as seen best in Fig. 3 ofthe drawings, to catch the scrapings which are removed from the rollers 12 by the scrapers 20 and 21. The drum 13 is usually mounted on a shaft 22, the ends whereof extend into the slots 23 in the sides 18.

The rollers 12 are mounted on shafts 24, having bearings in the frame sides 18. The shafts 24 are united by gears to be driven in unison and in the same rotary direction. Vhen actively disposed, the cleaning apparatus is supported by the rollers 12, the Scrapers 20 and 21 being shaped to conform with the curvature of said rollers to make a close or ground fit thereupon.

The cleaner herein described embodies two separable sections, each having a face plate 25. The plates 25 are normally held in spaced relation by springs 26. The plates are held in alinement by guiding pins 27, said pins being made fast to one of said plates and having sliding connections with sockets in the other of said plates.

'The appartus is moved lengthwise between the rollers 12 by means of anendless cable 28. The cable 28 is wrapped on a drum mounted on one of the sides 18 and having a crank handle 29, by which the said cable may be manipulated for moving the cleaner from end to end between the rollers 12. Attached to the opposite side 18 of the printing press is a pulley 30. It will be understood that other means may be employed for shifting the cleaner lengthwise between the rollers 12.

In inactive position the cleaner is held between the curved plates 31 adjacent one end of the rollers 12, the curvaturev of the platesV 81 being the same as the curvature of the rollers 12, so that the sides of the lcleaner and the scrapers 20 and 21 thereof pass onto the surface of the platesV 31 as they leave the surface of the rollers 12. The. plates 31 are supported by the brackets 32, which rest upon the shafts 24.

Vhen the apparatus above specified has been installed, a supply of kerosene or other suitable fluid is placed in the trough 17. The wick ends 15 absorb the fluid and carry the same to the upper or folded section of the wipers 14. The loops 16 are constructed of spring wire, the ends whereof are held by the fastening'screws 33. The loops 16 normally operate tov extend the folded portion of the wipers 14 toward the rollers 12, thereby effecting a yielding but firm pressure of the wipers upon said rollers.

`W hen in the course of the operation it becomes necessary in the opinion of the attendant at the printing press to clean the rollers l2, he moves the cleaner from its inactive position between the plates 31, by turning the handle 29 and the winding drum connected therewith so that the cable 28 is moved conformably to the movement of the cleaner between the rollers 12. As the Vcleaner is moved between the Said rollers one or more times, the scrapers 2O and 21 removeany deposit on the rollers 12 and burnish the same. The matter that is removed by the Scrapers is delivered to the drip pan19. Generally a single traverse of the cleaner to and from the plates 31 is sufficient to thoroughly Vcleanse the rollers 12 for a. run ofrquite along period, dependent, of course, upon the condition ofthe web 13.

It is obvious that when employing a cleaner constructed andarranged as here-v in disclosed, the rollers 12 Ymay kbe maintained free of any deposit that can be transferred to the web.

Olaz'ms. Y

a scraper; a carrier for said scraper, saidV carrier being disposed between and in supported relation to the rollers' of a printing press for supporting the offset web drum; and means for reciprocating said carrier lengthwise betweenv said rollers.

3. A cleaner as characterized comprising `a scraper;v a carrier for said scraper, said carrierbeing disposed between and in supported relation to the rollers of a printing press for supporting the offset web drum; and a plurality of wipers mounted on said carrier and extended from said carrier for engagement with the surface of said rollers.

4. A cleaner as characterized comprising a wiper; a carrier for said wiper, said carrierbeing disposed between and in supported relation to the rollers of a printing press for supporting the offset web drum; and a plurality of Scrapers mounted on said carrier and extended from said carrier for engagement with the surface of said rollers, said scrapers being ground to conform to the surface of said rollers.

5. A cleaner as characterized comprising a wiper; a carrier for said wiper, said carrier being disposed between and in supported relation to the rollers of a printing press for'supporting the oifset web drum; a plurality of scrapers mounted on said car- Y rier and extended from said carrier forengagementV with the surface of said rollers, said scraper-s being ground to conform to the surface of said rollers;` and means for supplying said wiper with a lubricating fluid. v

6. A cleaner as characterized comprising a wiper; a carrier for said wiper, said carrier'being disposed between and in supported relation to the rollers of a printing press for supporting the offset web drum; a plurality of Scrapers mounted on said carrier and extended from said carrier forengagement with the surface of said rollers, said Scrapers being ground to conform to the surface of said rollers; and means for supplying said wiperY with a lubricating fluid, said means embodying a trough-like supply extending below said rollers and below the path of said carrier.

7. A cleaner as characterized comprising a plurality of carrying plates ,means operatively connecting said plates for guiding the same in their relative movements; expansive means engaging said plates for normally maintainingthe same in spaced rel-ation; means operatively engaging said plates for moving the same lengthwise between the supporting rollers of the web roller of a printing press; and scraping plates for said carrying plates disposed in line with said supporting rollers, the surfaces of said scraping plates being alined with the surfaces of said rollers.

l 8; -A cleaner as characterizedcomprising a plurality of carrying plates; means operatively connecting said plates for guiding the same in their relative movements; expansive means engaging said plates for normally maintaining the saine in spaced relation; and means operatively engaging said plates for moving the same lengthwise between the supporting rollers of the web roller of a printing press, said means embodying a winding drum and cable therefor, the endsA of said cable being attached to said plates at opposite sides thereof.

9. A cleaner as characterized comprising a plurality of carrying plates; means operatively connectin said plates for guiding the same in their re ative movements; expansive means engaging said plates for normally maintaining the same in spaced relation; means operatively engaging said plates for moving the same in unison lengthwise between the supporting rollers of the web rollers of a printing press, said means embody ing a winding drum and cable therefor, the ends of said cable being attached to said plates at opposite sides thereof; a trough for a supply of lubricating fluid, said trough being netherposed and in parallel relation to the path of said plates; and capillary devices mounted between said plates to bear against the surfaces of said supporting rollers, the ends of said devices resting within said trough.

10. A cleaner as characterized comprising a plurality of carrying plates; means operatively connecting said plates for guiding the same in their relative movements; expansive means engaging said plates for normally maintaining the same in spaced relation; means operatively engaging said plates for moving the same in unison lengthwise between the supporting rollers of the web roller of a printing press, said means em bodying a winding drum and cable therefor, the ends of said cable being attached to said plates at opposite sides thereof; a trough for a supply of lubricating fluid, said trough being netherposed and in parallel relation to the path of said plates; capillary devices mounted between said plates to bear against the surfaces of said supporting rollers, the ends of said devices resting within said trough; and means for yieldingly pressing said devices in engaged relation to said rollers.

11. A cleaner as characterized comprising a plurality of carrying plates; means operatively connecting said plates for guiding the same in their relative movements; eX- pansive means engaging said plates for normally maintaining the same in spaced rela tion; means operatively engaging said plates for moving the same in unison lengthwise between the supporting rollers of the web roller of a printing press, said means e1nbodying a winding drum and cable therefor, the ends of said cable being attached to said plates at opposite sides thereof; a trough for a supply of lubricating fluid, said trough being netherposed and in parallel relation to the path of said plates; capillary devices mounted between said plates to bear against the surfaces of said supporting rollers, the ends of said devices resting within said trough; and means for yieldingly pressing said devices in engaged relation to said rollers, said means embodying a plurality of resilient springs having loops for supporting said devices in service relation.

JAMES M. TRIER.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D.. C. 

